It's ridiculous. Spend ages working on tiny, tiny pieces of the text, just trying to work out what the **** he just did. For example, me and a mate spent a good hour or two this afternoon trying to work out how the hell he did this:

Still haven't worked it out. First line is fine, second line just hasn't come out at all.

EDIT: And then a second try gets it out in fifteen minutes. Go figure.

Yep, exactly that. Got it out in the end. Now trying to work out what the hell he did for the massive one-particle states, specifically why SO(3) is the little/stabilizer group for those particles, which seems sensible but also seems to sort of contradict the whole point of the Wigner rotation.

1) Had double pneumonia as a kid, as did my twin sis. Doctors told my parents to pray that we lived through the night. Dad said **** off, I'm an atheist, you ****s better save my kids, etc. Then prayed anyway.